497K 1 d82690d497k.htm COLUMBIA ACORN TRUST Columbia Acorn Trust

Supplement dated December 14, 2015

to the Prospectus, Summary Prospectus and Statement of Additional Information (“SAI”)

dated May 1, 2015, each as supplemented, for the following Fund:

COLUMBIA ACORN TRUST

Columbia Acorn International SelectSM

Effective January 1, 2016, the Prospectus, Summary Prospectus and SAI for Columbia Acorn International Select are supplemented to reflect that:

 

    Columbia Wanger Asset Management, LLC (“CWAM”), the investment adviser to the Fund, has appointed Stephen Kusmierczak, CFA, as a co-portfolio manager of the Fund. Mr. Kusmierczak has been associated with CWAM or its predecessors as an investment professional since 2001. He began his investment career in 1999 and earned a B.A. from Bowdoin College and an M.P.A. from Princeton University, Woodrow Wilson School of Public and International Affairs.

 

    Andreas Waldburg-Wolfegg will continue to serve as a co-portfolio manager of the Fund. Christopher J. Olson, CFA, will no longer serve as a co-portfolio manager of the Fund.

Shareholders should retain this Supplement for future reference.

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